小麦秆锈菌是我区小麦生产上的一大病害。1950年河套地区因秆锈病大发生,每亩小麦仅收21斤。1952年全区因秆锈病危害,小麦减产20%。从此以后由于推广了抗锈品种,才把小麦锈病的危害逐年控制下去。国内外的生产实践告诉我们,培育抗锈良种(尤其是多抗性良种)是防止锈病经济有效的途径。但是一切事物都在发展变化,小麦锈病的生理小种也在不断地发生变异。新的生理 Wheat straw rust is a major disease in wheat production in our region. Hetao area in 1950 due to large straw rust occurred, only 21 pounds per mu of wheat received. In 1952 the region due to stem rust damage, wheat cut 20%. From then on, due to the promotion of anti-rust varieties, the risk of wheat rust was controlled year by year. Production practice at home and abroad tells us that cultivating anti-rust varieties (especially multi-resistant varieties) is a cost-effective way to prevent rust. But everything is evolving and the physiological races of wheat rust are constantly changing. New Physiology